Deflickering

In video processing, deflickering is a filtering operation applied to brightness flicker in video to improve visual quality. The flicker effect can be seen when camera framerate and lighting frequency are not adjusted or in video digitized old film.[1] The filter aims to improve the appearance of movies.[citation needed]

The main idea is to smooth image brightness between series of the same scene frames.

The deflickering filter is usually used in video camera (for normalizing picture), used for postprocessing of captured video, and for restoration of video from old films.

Deflickering is one aspect of the broader problem of tonal stabilization.[2]

References

  1. ^ Pitie, F.; Kent, B.; Collis, B.; Kokaram, A.C. "Localised deflicker of moving images". 3rd European Conference on Visual Media Production (CVMP 2006). Part of the 2nd Multimedia Conference 2006. Conferences: 134–143. doi:10.1049/cp:20061935. hdl:2262/24719.
  2. ^ Farbman, Zeev; Lischinski, Dani (2011-07-25). "Tonal stabilization of video". ACM SIGGRAPH 2011 papers. SIGGRAPH '11. New York, NY, USA: Association for Computing Machinery: 1–10. doi:10.1145/1964921.1964984. ISBN 978-1-4503-0943-1.


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